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67476f08fc
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@909 72102866-910b-0410-8b05-ffd578937521
129 lines
3 KiB
C
129 lines
3 KiB
C
/* Callbacks for pointers to `void'.
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* Copyright (C) 1996 Free Software Foundation, Inc.
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*
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* Author: Albin L. Jones <Albin.L.Jones@Dartmouth.EDU>
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* Created: Sat Feb 10 22:04:38 EST 1996
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* Updated: Sun Feb 11 01:09:34 EST 1996
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* Serial: 96.02.11.03
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*
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* This file is part of the GNU Objective C Class Library.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/**** Included Headers *******************************************************/
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#include <stdlib.h>
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#include <objects/callbacks.h>
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/**** Type, Constant, and Macro Definitions **********************************/
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objects_callbacks_t objects_callbacks_for_void_p =
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{
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(objects_hash_func_t) objects_void_p_hash,
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(objects_compare_func_t) objects_void_p_compare,
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(objects_is_equal_func_t) objects_void_p_is_equal,
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(objects_retain_func_t) objects_void_p_retain,
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(objects_release_func_t) objects_void_p_release,
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0
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};
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objects_callbacks_t objects_callbacks_for_owned_void_p =
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{
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(objects_hash_func_t) objects_owned_void_p_hash,
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(objects_compare_func_t) objects_owned_void_p_compare,
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(objects_is_equal_func_t) objects_owned_void_p_is_equal,
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(objects_retain_func_t) objects_owned_void_p_retain,
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(objects_release_func_t) objects_owned_void_p_release,
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0
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};
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/**** Function Implementations ***********************************************/
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size_t
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objects_void_p_hash(void *cptr)
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{
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return ((size_t) cptr)/4;
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}
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int
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objects_void_p_compare(void *cptr, void *dptr)
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{
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if (cptr == dptr)
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return 0;
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else if (cptr < dptr)
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return -1;
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else /* if (cptr > dptr) */
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return 1;
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}
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int
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objects_void_p_is_equal(register void *cptr, register void *dptr)
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{
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return (cptr == dptr);
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}
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void *
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objects_void_p_retain(void *cptr)
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{
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return cptr;
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}
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void
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objects_void_p_release(void *cptr)
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{
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return;
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}
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size_t
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objects_owned_void_p_hash(void *cptr)
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{
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/* We divide by 4 because many machines align
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* memory on word boundaries. */
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return ((size_t) cptr)/4;
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}
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int
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objects_owned_void_p_compare(void *cptr, void *dptr)
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{
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if (cptr == dptr)
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return 0;
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else if (cptr < dptr)
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return -1;
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else /* if (cptr > dptr) */
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return 1;
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}
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int
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objects_owned_void_p_is_equal(register void *cptr, register void *dptr)
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{
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return (cptr == dptr);
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}
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void *
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objects_owned_void_p_retain(void *cptr)
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{
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return cptr;
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}
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void
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objects_owned_void_p_release(void *cptr)
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{
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free(cptr);
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return;
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}
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